@article {gase_toques_2025,
	title = {TOQUES: An Ocean-Bottom Seismometer Dataset on the Central Queen Charlotte Fault, Southeast Alaska},
	journal = {Seismological Research Letters},
	year = {2025},
	month = {mar},
	abstract = {Plate boundaries in the oceans are often poorly monitored. Though typically less remote than the deep sea, shallow marine environments with seafloor depths \&lt;0.5~km can be especially challenging for seismic experiments due to natural and anthropogenic hazards and noise sources that can affect instrument survival and data quality. The Queen Charlotte fault (QCF) is part of a transform plate boundary that follows the continental shelf of the Alaska Panhandle and central British Columbia. This fault system accommodates dextral slip between the Pacific and North American plates and has hosted several historic Mw \&gt; 7 earthquakes. In August 2021, we deployed 28 broadband ocean-bottom seismometers (OBSs) along the central QCF for the {\textquotedblleft}Transform Obliquity along the Queen Charlotte Fault and Earthquake Study{\textquotedblright} (TOQUES) to investigate fault architecture and local seismicity. Deployment depths varied between 0.2 and 2.5~km below sea level, with half of the instruments deployed in shallow water (\&lt;0.5~km depth). We describe the scientific motivations for the TOQUES broadband OBS array, present data metrics, and discuss factors that influence data quality and instrument survival. We show that many opportunities exist for scientific study of shallow marine environments and the solid earth. Despite concerns that shallow water was responsible for the risk of data or instrument loss, direct relationships between instrument success and water depth are inconclusive. Rather, instrument success may be more related to the ability of different instrument designs to withstand shallow-water conditions.},
	issn = {0895-0695},
	doi = {10.1785/0220240380},
	url = {https://doi.org/10.1785/0220240380},
	author = {Gase, Andrew C. and Roland, Emily C. and Worthington, Lindsay L. and Walton, Maureen A. L. and Bostock, Michael G. and Nedimovi{\'c}, Mladen R. and Collins, John A. and Brandl, Collin C. and Jaye Oliva, Sarah and Sun, Tianhaozhe}
}
@article {christeson_seismic_2022,
	title = {Seismic evidence for magmatic underplating along the Kodiak-Bowie Seamount Chain, Gulf of Alaska},
	journal = {Tectonophysics},
	volume = {845},
	year = {2022},
	month = {11/2022},
	pages = {229639},
	abstract = {Oceanic crust formed at mid-ocean ridges may be later modified by off-ridge magmatism forming seamounts, guyots, and islands. We investigate processes associated with seamount formation in the Gulf of Alaska Seamount Province using two coincident seismic reflection/wide-angle profiles. A north-south profile crosses the Kodiak-Bowie Seamount Chain and Aja fracture zone (FZ), and an orthogonal east-west profile is located about 90~km south of the seamount chain over Pacific plate oceanic crust. Structure along the profile away from the seamount chain is consistent with typical oceanic crust. Crust in our study region is thinnest (about 5.6~km) at the Aja FZ. Unlike observations from active transform faults, no low-velocity anomaly is observed at the Aja FZ suggesting that the crustal velocities have recovered to normal values through crack closure and crack healing. Higher lower crustal velocities (\~{}7.3 and~>~7.5~km/s) and thicker crust (\~{}8.5 and~\~{}7.0~km) are observed near the Pratt and Durgin Seamounts and at the intersection of the Kodiak-Bowie Seamount Chain linear trend, respectively. These observations are attributed to magmatic underplating associated with seamount province magmatism. Lithospheric thickness variations across the Aja FZ may form a barrier or impediment to magmatic flow. The thickest crust (8.5~km) along our two profiles is located on the younger side of the FZ, and we suggest that the majority of magmatism jumped south of the Aja FZ when thinner lithosphere was encountered by the Bowie hot spot. The crustal structure near the Kodiak-Bowie Seamount Chain is most similar to that of other seamounts and guyots that formed on similarly young lithosphere (8{\textendash}12~Ma). Our results suggest that lithospheric thickness at the time of hot spot interaction has a large control on magmatic underplating at seamounts and seamount provinces.},
	keywords = {Fracture zone, Magmatic underplating, Seamount},
	issn = {0040-1951},
	doi = {10.1016/j.tecto.2022.229639},
	url = {https://www.sciencedirect.com/science/article/pii/S0040195122004334},
	author = {Christeson, Gail L. and Gulick, Sean P. S. and Walton, Maureen A. L. and Barth, Ginger A.}
}
